Simrad RC25 - Connection to Other Equipment

Simrad Autopilot Compass
28 20220653 / Rev. C
Connection to other equipment
RFC35N
GREY
PINK
GREEN
YELLOW
BROWN
WHITE
GND
+12/24V
RX
RX+
TX
TX+
SUPPLY (From circuit breaker
or via a separate switch)
NMEA IN (CALIBRATION)
NMEA OUT (HEADING)
J1
NMEA
J2
ROBNET
J3
EXT.COMP
GREY (VIN-)
PINK (VIN+)
YELLOW (RX+)
GREEN (RX-)
6543
2
1
11
2
23
4
NMEA PCB
BROWN (TX-)
WHITE (TX+)
Figure 5-10 RFC35N Connection to other equipment
Cable color code
* RX+ (Yellow) and RX– (Green) are only used if the NMEA
equipment can send the proprietary sentences for calibration and
offset as described in Technical specifications, section 7.5. If so,
the calibration procedure will be similar to that of the IS15
instruments. Calibration data and heading offset is stored in the
compass and will not be deleted until a new calibration is
performed.
Calibration
As most other NMEA users cannot
communicate with the compass on
NMEA data (calibration start and
confirmation) the RFC35N has to be
calibrated the following way:
• Switch the compass off/on using the
circuit breaker or the separate switch.